of behaviour in a multiple clock system. 2009 T. Limbourg: Parental care in relation to offspring sex and mate attractiveness in the Blue tit. 2009 R.H.E. Mullers: The commuting parent. Energetic constraints in a long distance forager, the Cape gannet. 2009 K.A. Schubert: Breeding on a budget. Fundamental links between energy metabolism and mammalian life history trade-offs. (cum laude) 2009 M.A. Comas Soberats: Entrainment to daylength in the mouse circadian system. Behavioural and molecular analyses. (cum laude) Honorary doctorate: 2009 Michael Menaker, University of Virginia Laudakia stellio daani A subspecies of lizard found on some Greek Aegean islands and Turkish Anatolia, Laudakia stellio daani, is named after S. Daan. The subspecies differs from the nominotypical subspecies (L. stellio stellio) by having a black-gray head instead of yellowish or reddish head color. This difference was noted by Serge Daan during his investigations in the Mediterranean area, and reported in a paper in 1967 . Social gatherings Serge Daan and his wife Ruth Hohe-Daan are well known for their hospitality within the scientific community. Throughout the years, many biologists have stayed in their house ‘villa Later’ in Paterswolde. Serge and Ruth are also well known for organising a yearly summer garden party for the people working in the lab. Honors and awards 1967 UNIVERSITY OF AMSTERDAM: The annual student award, for a study on: Lateral undulations in the spinal cord in lizard locomotion 1980 Laudakia stellio daani, a Greek and Turkish lizard, named after S.Daan by A.Beutler, E. Frør, Mitt. Zool. Ges. Braunau 3: 255-290 1992 ALEXANDER VON HUMBOLDT Forschungspreis (Research Prize) (Germany) 2000 ROYAL SOCIETY of CANADA, elected Foreign Fellow 2002 Recipient of “Aschoff’s Rule”, meeting of the Society for Research on Biological Rhythms, Amelia Island (Fa, USA). Many chronobiologists will envy Serge for this prize. It is the ruler that was owned by Jürgen Aschoff, one of the fathers of modern chronobiology. The ruler is awarded each time by the previous winner to a new winner, who is selected because he or she is doing chronobiological research with a different technique in a different species than the previous winner. The names of the winners are listed on the back of the ruler. 2003 Appointed as Niko Tinbergen Distinguished Professor in Behavioural Biology 2005 Ridder in de Orde van de Nederlandse Leeuw (Knight in the Order of the Dutch Lion) 2006 INTERNATIONAL PRIZE FOR BIOLOGY (Japan Society for the Promotion of